In a major discovery for local butterfly experts, the known distribution of the Black-spot Royal (Tajuria luculentus) has been extended to Sikkim, further enriching the State's already remarkable butterfly diversity. The state has now joined Manipur and Meghalaya,

The finding was published in the March-June 2025 issue of the quarterly newsletter Bionotes, released by the Butterfly Research Centre, Bhimtal in Uttarakhand, last month.